What are quantum numbers and why four of them?
Students struggle with the 4-number system—simplify it.
Moment of Inertia
Why does a gymnast pull in her arms while spinning?
What is the significance of de Broglie's equation?
Explain with real-life analogy.
Gravitation Basics
Why don't we feel Earth pulling everything together if gravity is so strong?
Why can't two electrons in the same atom have identical quantum numbers?
Pauli Exclusion Principle made simple.
Free-Fall Intuition
Do heavier objects fall faster than lighter ones?
Why do energy levels converge at higher shells?
Seen in hydrogen spectra.
Weightlessness in Space
Why do astronauts “float” inside the ISS if gravity still exists there?
How does Heisenberg's Uncertainty Principle affect atomic structure?
Make it relatable.
Satellites and Orbits
Why don't satellites fall back to Earth?
Why do atoms form chemical bonds?
Make it intuitive.
Tides and Moon's Gravity
How does the Moon cause ocean tides on Earth?
Why is water bent while CO₂ is linear?
Compare using VSEPR theory.
Simple Harmonic Motion
What makes a motion “simple harmonic”?
How is polarity determined in molecules?
Use real-life analogy.
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